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题名: Revealing the shear band cracking mechanism in metallic glass by X-ray tomography
作者: Qu, R. T.;  Wang, S. G.;  Wang, X. D.;  Liu, Z. Q.;  Zhang, Z. F.
发表日期: 2017-5-1
摘要: The mechanism of shear band (SB) cracking or cavitating under the stress state free from negative pressure is one of long-standing unsolved issues in metallic glass (MG). Here we show key findings including the 3D imaging on the evolution of SB cracking during compressing a ductile MG. Discontinuous and non-coplanar cracks with long narrow-thin morphology were observed in a shear-banding affected zone that is much thicker than the SB core. The results demonstrated that the SB cracking originates possibly from (1) the creation and coalescence of excess free volume, (2) the shearing of non-planar SB, and/or (3) the SB interaction. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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Recommended Citation:
Qu, R. T.,Wang, S. G.,Wang, X. D.,et al. Revealing The Shear Band Cracking Mechanism In Metallic Glass By X-ray Tomography[J]. Scripta Materialia,2017,133:24-28.

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